The sealing ring of a new pot that has not been used has high elasticity. Please add a small amount of food oil to the top and bottom of the pot as shown by the arrow in the figure to facilitate the initial opening and closing. The lid, body and handle of the pot shall be cleaned before each use to facilitate the closing of the lid. When putting food, food and water shall not exceed four fifths of the pot capacity, and water or soup shall not be less than 400ml.